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Is it possible for the kidney to increase water reabsorption without increasing salt absorption Explain?
Yes, it is possible for the kidney to increase water reabsorption without increasing salt absorption. This can occur through the action of antidiuretic hormone (ADH), which promotes the reabsorption of water in the collecting ducts without directly affecting sodium reabsorption. In conditions such as hyperosmolarity, the kidneys can concentrate urine by reabsorbing more water, while sodium levels in the body remain stable. Thus, water reabsorption can be enhanced independently of sodium absorption.
Is urine formed when absorption and reabsorption happen during blood filtration?
This is true.
Anti duretic hormone increases absorption of?
It increase the reabsorption of water. That is from distal convaluted tubules
What conditions are treated by bone re-absorption inhibitors?
Bisphosponates acts directly to inhibit bone reabsorption
How does Tubular re-absorption and tubular secretion differ?
secretion adds material to the filtrate; reabsorption removes materials from the filtrate
Summarize reabsorption in the proximal tubule?
Reabsorption in the proximal tubule involves the passive and active transport of glucose, amino acids, ions, and water from the tubular fluid back into the bloodstream. This reabsorption process helps maintain the body's electrolyte balance and conserve valuable nutrients. It is highly efficient due to the presence of a brush border with microvilli that increases surface area for absorption.
What is glomerular absorption?
Glomerular absorption refers to the process by which substances are reabsorbed from the renal tubules back into the bloodstream after filtration occurs in the glomerulus of the kidneys. Although the term is often used to describe the reabsorption of water, electrolytes, and nutrients, it is important to note that most reabsorption occurs in the renal tubules rather than in the glomerulus itself. This mechanism is crucial for maintaining fluid and electrolyte balance in the body. Overall, glomerular absorption plays a significant role in urine formation and homeostasis.
Cells with large numbers of microvilli on their apical surface are probably involved in?
absorption of nutrients, because microvilli increase the surface area available for absorption. These cells are commonly found in the small intestine to facilitate the absorption of essential nutrients from digested food.
When the kidneys return salts and water to the blood it is called?
Reabsorption via a process called "secretion".
Calcium reabsorption by the kidneys is promoted by the hormone?
Parathyroid hormone not only increases the re-absorption of calcium from the kidney but it also helps absorption in the intestines by increasing the production of vitamin D activation which also occurs in the kidney.
How does sodium reabsorption affect water reabsorption?
Sodium reabsorption in the kidneys creates an osmotic gradient that drives water reabsorption. As sodium is reabsorbed into the bloodstream, water follows it to maintain the body's electrolyte balance and fluid volume. Therefore, sodium reabsorption directly influences the reabsorption of water in the kidneys.
The hormone ADH affects reabsorption in the glomerulus?
Antidiuretic hormone (ADH), also known as vasopressin, primarily affects water reabsorption in the kidneys, but it does not directly influence reabsorption in the glomerulus. Instead, ADH acts on the collecting ducts of the nephron, increasing their permeability to water, which enhances water reabsorption back into the bloodstream. This action helps regulate body fluid balance and concentrate urine, particularly in response to dehydration or high osmolarity.
